<clickhouse>
    <background_processing_pool_thread_sleep_seconds>0.5</background_processing_pool_thread_sleep_seconds>
    <background_processing_pool_task_sleep_seconds_when_no_work_min>0.5</background_processing_pool_task_sleep_seconds_when_no_work_min>
    <background_processing_pool_task_sleep_seconds_when_no_work_max>0.5</background_processing_pool_task_sleep_seconds_when_no_work_max>
</clickhouse>
